diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -2921,17 +2921,7 @@ class localrepository:
 
         unfi = self.unfiltered()
 
-        if full:
-            msg = (
-                "`full` argument for `repo.updatecaches` is deprecated\n"
-                "(use `caches=repository.CACHE_ALL` instead)"
-            )
-            self.ui.deprecwarn(msg, b"5.9")
-            caches = repository.CACHES_ALL
-            if full == b"post-clone":
-                caches = repository.CACHES_POST_CLONE
-            caches = repository.CACHES_ALL
-        elif caches is None:
+        if caches is None:
             caches = repository.CACHES_DEFAULT
 
         if repository.CACHE_BRANCHMAP_SERVED in caches: